题目内容:
The lower-level classes(known as subclasses or derived classes) ( )state andbehavior from the higher-level class(known as a super class or base class).
A.request
B.inherit
C.invoke
D.accept
参考答案:
答案解析:
The lower-level classes(known as subclasses or derived classes) ( )state andbehavior from the higher-level class(known as a super class or base class).
A.request
B.inherit
C.invoke
D.accept